2023 TOYOTA SIENNA HYBRID fuse box

3755-4. Using the other interior features
5
Interior features
Please use as a power supply
for electronic devices that use
less than 120 VAC (power con-
sumption of 1500 W).
■Using the power outlets
Rear of console box
Open the lid.
Luggage compartment
Open the lid.
■When turning the power
outlets on
1 Check that the parking brake
is engaged, and press the
power switch while depress-
ing the brake pedal.
2 Check that the READY indi-
cator is illuminated, and
press the AC120V switch.
The power outlets can be used
when the indicator on the AC120V
switch is illuminated.
The power outlets are turned off/on
each time the AC120V switch is
pressed.
■When connecting a device
Open the lid, and fully and
securely insert the plug of the
device into the power outlet.
NOTICE
■When power outlet is not in
use
To avoid damaging the power out-
let, close the p ower outlet lid
when the power outlet is not in
use.
Foreign objects or liquids that
enter the power outlet may cause
a short circuit.
■To prevent blown fuse
Do not use an accessory that
uses more than 12 V 10 A.
■To prevent 12-volt battery dis-
charge
Do not use the power outlet lon-
ger than necessary when the
hybrid system is off.
Power outlets (120 VAC)
(if equipped)

4136-3. Do-it-yourself maintenance
6
Maintenance and care
Fuse box (P.446)
Engine oil filler cap ( P.414)
Engine oil level dipstick ( P.413)
Brake fluid reservoir ( P.417)
Radiator ( P.417)
Electric cooling fan
Condenser ( P.417)
Power control unit coolant reservoir ( P.416)
Washer fluid tank ( P.418)
Engine coolant reservoir ( P.416)
■12-volt battery
 P.419
With the engine at operating
temperature and turned off,
Engine compartment
Components
A
B
C
D
E
F
G
H
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4466-3. Do-it-yourself maintenance
1Turn the power switch off.
2 Open the fuse box cover.
Engine compartment
Push claw , and to com-
pletely release the lock, and then lift
up the cover.
Left side instrument panel
Remove the lid.
Right side luggage compart-
ment
Remove the cover
3Remove the fuse.
Only type A fuse c an be removed
using the pullout tool.
4 Check if the fuse is blown.
Replace the blown fuse with a new
fuse of an appropriate amperage
rating. The amperage rating can be
found on the fuse box lid.
Type A
Normal fuse
Checking and replac-
ing fuses
If any of the electrical com-
ponents do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.
Checking and replacing
fuses
ABC
A

4476-3. Do-it-yourself maintenance
6
Maintenance and care
Blown fuse
Type BNormal fuse
Blown fuse
Type CNormal fuse
Blown fuse
■After a fuse is replaced
●When installing the lid, make sure
that the tab is installed securely.
●If the lights do n ot turn on even
after the fuse has been replaced,
a bulb may need replacement.
(  P.448)
●If the replaced fuse blows again,
have the vehicle inspected by
your Toyota dealer.
■If there is an overload in a cir-
cuit
The fuses are designed to blow,
protecting the wiring harness from damage.
■When replacing light bulbs
Toyota recommends that you use
genuine Toyota products designed
for this vehicle. Because certain
bulbs are connected to circuits
designed to prevent overload, non-
genuine parts or parts not designed
for this vehicle may be unusable.
B
A
B
A
B
WARNING
■To prevent system break-
downs and vehicle fire
Observe the following precau-
tions.
Failure to do so may cause dam-
age to the vehicle, and possibly a
fire or injury.
●Never use a fuse of a higher
amperage rating than that indi-
cated, or use any other object in
place of a fuse.
●Always use a genuine Toyota
fuse or equivalent.
Never replace a fuse with a
wire, even as a temporary fix.
●Do not modify the fuses or fuse
boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical over-
load determined and repaired by
your Toyota dealer as soon as
possible.
■To prevent damage to the
engine compartment fuse box
cover
When opening the fuse box, com-
pletely release the claw locks
before lifting up the cover. Other-
wise, the claws may be damaged.

5047-2. Steps to take in an emergency
displayed on the multi-infor-
mation display.
4 Press the power switch
shortly and firmly.
In the event that the hybrid system
still cannot be started, contact your
Toyota dealer.
■Stopping the hybrid system
Shift the shift lever to P, set the
parking brake and press the power
switch as you no rmally do when
stopping the hybrid system.
■Replacing the key battery
As the above proc edure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediate ly when the bat-
tery is depleted. ( P.444)
■Alarm (if equipped)
If a door is unlocked using the
mechanical key when the alarm sys-
tem is set, the alarm may be trig-
gered. ( P.89)
■Changing power switch modes
Release the brake pedal and press
the power switch in step 3 above.
The hybrid system does not start
and modes will be changed each
time the switch is pressed.
(  P.237)
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start your vehicle
by following the steps below.
1 Vehicles with alarm: Confirm
that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and the doors locked. ( P.90)
2 Open the hood ( P.410) and
fuse box cover.
Push claw , and to com-
pletely release the lock, and then lift
If the 12-volt battery is
discharged
The following procedures
may be used to start the
hybrid system if the vehi-
cle’s 12-volt battery is dis-
charged.
You can also call your
Toyota dealer or a qualified
repair shop.
Restarting the hybrid sys-
tem
ABC

5067-2. Steps to take in an emergency
recharge the 12-volt battery
of your vehicle.
6 Maintain the engine speed of
the second vehicle and start
the hybrid system of your
vehicle by turning the power
switch to ON.
7 Make sure the “READY” indi-
cator comes on. If the indica-
tor light does not come on,
contact your Toyota dealer.
8 Once the hybrid system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
9 Close the exclusive jump
starting terminal cover, and
reinstall the fuse box cover to
its original position.
Once the hybrid system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.
■Starting the hybrid system
when the 12-volt battery is dis-
charged
The hybrid system cannot be
started by push-starting.
■To prevent 12-vol t battery dis-
charge
●Turn off the headlights and the
audio system while the hybrid sys-
tem is off.
●Turn off any unnec essary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■When the 12-volt battery is
removed or discharged
●Information stored in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at you r Toyota dealer.
●Some systems may require initial-
ization. (P.551)
■When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals
are removed, the information stored
in the ECU is cleared. Before
removing the 12- volt battery termi-
nals, contact your Toyota dealer.
■Charging the 12-volt battery
The electricity stored in the 12-volt
battery will discha rge gradually even
when the vehicle i s not in use, due
to natural dischar ge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the hybrid system may
be unable to start. (The 12-volt bat-
tery recharges automatically while
the hybrid system is operating.)
■When recharging or replacing
the 12-volt battery
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the 12-
volt battery is discharged. Use the
wireless remote c ontrol or the
mechanical key to lock or unlock
the doors.
●The hybrid syste m may not start
on the first attemp t after reinstall-
ing the 12-volt battery. In that
case, start the hybrid system in
the same manner as when the
electronic key does not operate
properly ( P.503). This is not a
malfunction, as the hybrid system
will start normally on the second
attempt.
●The power switch mode is memo-
rized by the vehicle. When the 12-
volt battery is reconnected, the
system will return to the mode it

Alphabetical Index573
EV drive mode ........................ 239
Event data recorder (EDR)......... 8
EV indicator .............................. 80
F
Flat tire ............................ 480, 490Tire pressure warning system........................................... 424
Floor mats ................................. 32
Fluid Brake ............................ 417, 522
Hybrid transmission.............. 521
Rear differential .................... 521
Washer ................................. 418
Fog lights Replacing light bulbs ............ 448
Switch................................... 257
Front door courtesy lights Wattage ................................ 524
Front doors .......... ................... 132
Front passenger’s seat belt reminder light ....................... 471
Front passenger occupant clas- sification system .................... 51
Front seat heaters .................. 361
Front seats .............................. 170 Adjustment ........................... 170
Cleaning ............................... 399
Correct driving posture ........... 33
Driving position memory....... 179
Head restraints ..................... 183
Memory recall function ......... 181
Power easy access system .. 179
Seat heaters ......................... 361
Seat position memory .......... 179
Seat ventilators .................... 361
Front side marker lights ........ 251 Light switch .......................... 251
Replacing light bulbs ............ 448
Front turn signal lights Replacing light bulbs ............ 448
Turn signal lever................... 245 Fuel
Capacity ...............................518
Fuel gauge .....................97, 101
Information ......... ..................526
Refueling ..............................262
Type .............................518, 526
Warning light ........................470
Fuel consumption information Average fuel consumption ....125
Current fuel consumption .....125
Fuel filler door.........................263 If the fuel filler door cannot be opened ...............................501
Refueling ..............................262
Fuel gauge.........................97, 101
Fuses .......................................446
G
Garage door opene r ...............388
Gauges ..............................97, 101
Glove box ................................367
Grocery bag hooks .................387
H
Headlights ...............................251 AHB (Automatic High Beam) 253
Light switch...........................251
Replacing light bulbs ............448
Head restraints .......................183
Head-up display ......................118 Driving information display area...........................................118
Driving support system display area ....................................120
Head-up display switch ........119
Hybrid System Indicator .......121
Navigation system-linked display ...........................................118
Pop-up display......................120
Settings ................................119
Head-up display switch..........119